ToolchainFactory: Remove unused typeid

Change-Id: Id13787d549312251fbe806076b9ad594ab16c2d2
Reviewed-by: Eike Ziller <eike.ziller@theqtcompany.com>

src/plugins/projectexplorer/customtoolchain.cpp

@@ -372,7 +372,6 @@ namespace Internal {
 
 CustomToolChainFactory::CustomToolChainFactory()
 {
-    setTypeId(Constants::CUSTOM_TOOLCHAIN_TYPEID);
     setDisplayName(tr("Custom"));
 }